Electric meter.



No. 657,983. Patented sept. |8', |900.

. J. HAnms.

ELECTRIC METER.n (Application led July 5, 1899.)

(No Model.) 2-SheetsSheet l.

oca-ooo /Gooo /000 /00 No. 657,983. i Patented sept. ls, |900. J.HARRIS.

ELECT-HIC METER.

-(Application mea July 5, 1899. (No Modl.) l 2 Shets-Sheet 2.

TH: cams versus w., w19-umol. wAsmucwou. n, c,

of the United States, residing at Lynn, Massa- Fig. 3, a plan of thearmature and its parts;l

UNITED STATES PATENT rrrcn.

JESSE HARRIS, OF LYNN, MASSACHUSETTS.

ELECTRIC M ETER.

SPECFICATION formng'part of Letters Patent N o. 657,983, dated September18, 1900.

Application iiled July 5,1899. Serial No. 722,889. (No model.)

o all whom it may concern:

Beit known that I, JESSE HARRIS, a citizen chusetts, have inventedcertain new and useful Improvements in Electric Meters; and I do herebydeclare the following to be a full, clear, and exact description ot' theinvention, such as will enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccompanying drawings, and to the letters and figures ofret'erencemarked thereon, which form apart of this specification.

The object of my invention is-to provide a new and improved electricmeter.

In the drawings, Figure 1 shows a plan view of my meter; Fig. 2, a sideelevation thereof;

Fig. 4, a plan of the toothed segment-used in winding the1 clockwork;and Fig. 5, a side elevation, shown partly in longitudinal section, ofthe driving mechanism Vof the clockwork employed.

In the drawings, the numeral 1 shows the current-coil of thedynamorneter, and 2 the pressure-coil, the pressure-coil being arrangedpivotally to move against the resilience ot the spring 5 as the currentflows through elements l and 2. To the pressure-coil is aiixed thearn1'3, having the counterweight 4 at one end and the transmitting-wheel6 at the other,` said Wheel 6 being arranged to move longi-A tudinallybetween rollers 7 and 8 (see Fig. 2) and to communicate motion to roller'7 Whenever the torque of the coil 2 swings the wheel longitudinally andthe raised surface of the roller 8 (seen at 9) comes in contact withsaid wheel, the motion thus given roller 7 being communicated to thecounting-train 2l and to the pointers on the face of the dial. Theroller 8 has a portion of its surface raised, as seen at 9, by wrappingastrip about the roller, preferably, and intermittent motion iscommunicated to roller 8 by means of the pinion 10 as follows:

1 2 is a drum containing the mainspring ct of the clockwork shown. Themainspring Ct is attached at one of its ends to the driving. wheel 12and at the other to the interior surface of the drum, preferably,practically as is the mainspring of a clock or watch.

15 is an armature caused to partly rotate or swing whenever the currentflows through electromagnets 2O 20, and as it rotates or swings itcarries toothed segment 11 with it, the teeth of which, meshing with thebasketpinion l0,revolve that pinion rearward. Pinion 10 and plate F aremade fast to each other or made to n1oveinunison,and pawl d on drum 12rests on catch e, so that when pinion 10 is revolved plate F and drum 12also revolve, all being loose on journal G. On drum 12 is a stop 13, anda stud 13/ is seen on wheel l2', and when pinion 10, plate F, and drum12 revolve (they make but one complete revolution at each winding) thestop 13 also revolves until it presents itselt` to the opposite side ofthe stud 13' from that shown as its position in Fig. 5, thedriving-wheel 12' remaining stationary during the travel ofthe,stop^13,'an`d this is accomplished by journal c"-beng entered in andfree to revolve in a boring in the end of the journal G. When stop 13has revolved one revolution, and thus wound the spring ct, pinion 10being free to revolve about journal G, the spring 16 (see Fig. 3) throwstoothed segment 11 to its normal position,carrying pinion 10 withit--t`. e., revolves pinion 10 backward. When pinion l0, plate F, anddrum 12 are revolved in'lthe act of winding spring ct, roller 8 alsorevolves with them, making one complete revolution, roller 8 being onlyrevolved when the spring is wound up, standing stationary at all othertimes. The dog 24 catches on al stop ou the end of roller Sand preventsthe spring a, drum 12, and plate F from revolving backward, and thusallowing of driving-wheel 12 receiving the force of said spring withwhich to run the clockwork. When driving-wheel l2 revolves, it carriesstud 13 around until it strikes against stop 13 and the clock must stop;but

so long as a current is passing through the line the clock will notstop, as at the instant stud 13 reaches stop 13 the brushes 15 and 15have met contact-piece 14, which revolves in unison withdriving-wheel12, and the current is caused to pass into theelectromagnets 2O 20, which draws armature 15 to the magnets and causesit to partly revolve or swing, when the winding operation is againrepeated, as above described, and stop 13 is carried away from stud 13',which allows the drivingwheel to continue running. If the current is cutoif the line at any time, no matter at what point driving-wheel 12 andstud 13 may be, the clockwork will continue to run until stop 13 andstud 13' again meet, at which time brushes 15 and 15 will be in contactwith contact-piece 14, and therefore when the current is again turned onthe clockwork is ready to instantly be wound and set going.

The operation is as follows: The current enters at f2, passes throughcurrent-coil of dynamometer 1 by wire d and by Wire c tof', thence tothe lamps or other transmitting devices through f4, returning by f5through and then through wire f6 `to generator. The pressure-coil isconnected in shunt across th line by means of wires e c, which areconnected to bindingposts f2 and f3. These circuits constitute thecircuit for the dynamoineter which indicates the watts in the circuit.The electromagnet which operates the clockwork is operated by a circuitplaced in shunt across the line and starts from wire c, then through eto coil 20, and by a.' and a to the brush 15, and then acrosscontact-piece 14 when 'said contact-piece 14 is in contact with thebrushes to 15, and by wire l) to and wires d and c and post f. Thecurrent for potential coil is completed through f2, e e, and f3. Whenthe current passes through the dynamometer consisting of elements l, 2,and 5, atorque is produced, detlecting arm f3 in extent determined bythe resilience of spring 5, and carries transmitting-Wheel 6longitudinally between the rollers 7 and 8. Then the current iscompleted by contactpicce 14 coming in contact with brushes 15 and 15",armature 15 is attracted by electromagnets 2O 20 and is caused to swingacross the faces of poles 22 22 against the resilience of spring 16, andthis motion of armature 15 causes toothed segment 11 to rotate pinion10, and the clockwork is wound, as has been fully describedhereinbefore, the clockwork running until the driving-wheel 12/ makesone revolution, when contact 14 and brushes 15 and 15" meet, when theclockwork is again wound, revolving roller S one revolution. As rollerSis thus revolved one revolution on each winding of the clock, which ispreferably wound once in every sixty seconds, it rotatestransmission-wheel 6, which rotates roller 7, which gives motion to thecounting-train 21 and the pointers on the face of the dial, andtherefore this meter operates its recording mechanism but once in sixtyseconds of time, preferably. B y properly adj Listing and calibrating ita watt-hour meter is produced.

Having fully described my invention,what I claim is- 1. An electricmeter having a source of power consisting of an electromagnet and aclockwork; the electromagnet being arranged to receive initialpowerintermittently and t0 intermittently wind the clockwork; theclockwork being arranged to complete an electric current whereby theelectromagnet is energized, the meter also having a registeringtrain andan indicating device,the registering train being arranged tointermittently receive motion from the transmitting device, and thertransmitting device arranged to receive motion from the electromagnetand communi cate said motion to t-he registering-train and indicatingdevice substantially as described. 2. In an electric meter a dynamometerand an arm arranged to be swung or moved by.

the torque of the coil, said arm carrying a transmission-wheel andhaving a plurality of rollers, one of them having an irregular surfacebetween which the transmission-roller lies and moves horizontally alongthe surface of the rollers and communicates motion to `one of saidrollers, said roller so receiving motion being in operative connectionwith a train of gearing operating pointers on the face of a dial, therollers arranged to receive motion from an electromagnet arranged tooperate intermittently, said electromagnet being in operative connectionwith a clock-` work and arranged to wind the same intermittently, saidclockwork being arranged to carry a movable contact-piece and bring itin electrical connection at predetermined times with electrodes saidelectrodes being in operative connection with a sdurce of electric powerand arranged to energize the electromagnet when in contact with thecontactpiece substantially as described.

JESSE HARRIS.

Witnesses:

WM. BROWN, W. B. HARRIS.

IOO

IIO

